Crushed Stone
We deliver every grade3a Stone
3A stone is a coarse crushed rock with most pieces falling roughly between 1/2 inch and 2-1/2 inches. It's an open-graded stone, so the dust and fines get screened out and water drains straight through the pile. The pieces are angular, so they lock into each other under weight instead of rolling around.
The "3A" is a size code from Michigan DOT's Section 902 aggregate specs. It tells you the screen sizes the rock has to pass through, and says nothing about whether it came from a limestone quarry or a gravel pit. Because 3A is big and drains fast, you'll usually see it as backfill around drain pipes, a heavy sub-base under road build-up, or foundation stone in soft or wet ground.
Compare every grade
| Grade | Size | Shape | Washed | Top use | We deliver |
|---|---|---|---|---|---|
| #3A Stone (1″ Minus) | 2" to 1" | Angular | — | Driveway base | We deliver it |
| #3A Stone (3/4″ To 1.5″, Modified) | 2" to 1" | Angular | — | Driveway base | We deliver it |
What people use it for
How to choose within 3a stone
Compaction over drainage
Angular pieces lock together. Pick a smaller size when you need the surface to stay put under a driveway or path.
Drainage over compaction
The larger the piece, the more room for water to move through. #1 or #57 for a French drain; #8 or smaller reads as loose gravel.
Washed vs. unwashed
Washed has the dust rinsed out, so it drains faster and won't track into the house. Unwashed compacts harder — better under a paver base.
Other crushed stone families
Chip Stone
We deliverChip stone is small crushed rock, roughly 1/4 inch to 1/2 inch across, with the dust screened out.
57 Stone
We deliver#57 stone is crushed rock screened between about 1 inch and 1/4 inch, with the dust washed out.
4 Stone
We deliver#4 stone is crushed rock screened between about 1 1/2 inches and 3/4 inch.
8 Stone
We deliver#8 stone is crushed rock screened between about 3/8 inch and 1/8 inch, with the fines washed out.
67 Stone
We deliver#67 stone is crushed rock screened between about 3/4 inch and 1/4 inch, with most of the dust washed out.
Crushed Stone 3 Stone
We deliver#3 stone is crushed rock in pieces roughly 1 to 2 inches across.
10 Stone
We deliver#10 stone is crushed rock screened down to dust and small pieces smaller than about 3/8 inch.
1 Stone
We deliver#1 stone is large crushed rock, roughly 2 to 4 inches across.
89 Stone
We deliver#89 stone is crushed rock screened between about 3/8 inch and the size of a coarse sand grain.
9 Stone
We deliver#9 stone is crushed rock screened to a 3/8 inch top size, with pieces running down to about the size of a grain of rice.
5 Stone
We deliver#5 stone is crushed rock screened between about 1 inch and 1/2 inch, with the fines washed out.
Crushed Stone 2 Stone
We deliver#2 stone is crushed rock screened between about 2 1/2 inches and 1 1/2 inches, with the dust washed out.